Trojan_Win32_GuLoader_EM_MTB

YARA detection rule by roadwy

Trojan:Win32/GuLoader.EM!MTB,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 05 00 00

rule Trojan_Win32_GuLoader_EM_MTB{
	meta:
		description = "Trojan:Win32/GuLoader.EM!MTB,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 05 00 00 "
		
	strings :
		$a_81_0 = {75 6e 68 61 69 6c 65 64 5c 42 79 67 72 6e 73 65 72 6e 65 73 2e 6c 6e 6b } 		$a_81_1 = {42 6f 69 6c 65 72 6d 61 6b 65 72 31 32 39 2e 73 61 67 } 		$a_81_2 = {62 72 64 66 72 75 67 74 74 72 65 72 73 5c 72 65 67 67 69 6f 2e 69 6e 69 } 		$a_81_3 = {62 6c 6f 6d 6d 65 73 74 65 6e 65 6e 65 73 5c 75 70 66 6c 6f 77 73 2e 69 6e 69 } 		$a_81_4 = {6e 75 6c 70 75 6e 6b 74 73 67 65 6e 6e 65 6d 67 61 6e 67 65 5c 63 6c 61 79 77 61 72 65 73 5c 50 61 67 65 64 6f 6d } 	condition:
		((#a_81_0  & 1)*1+(#a_81_1  & 1)*1+(#a_81_2  & 1)*1+(#a_81_3  & 1)*1+(#a_81_4  & 1)*1) >=5
 
}

[[ currentRule.title && currentRule.title.length > 60 ? currentRule.title.slice(0, 60) + '…' : currentRule.title ]]

58989555-6586-4dbf-848e-cd30ded17eea

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Executable code, not a declarative rule

This submission is arbitrary [[ currentRule.format ? currentRule.format.toUpperCase() : '' ]] code, not a declarative detection rule — review it as you would any script before running it, and note that it cannot be safely aggregated or auto-executed alongside YARA/Sigma/Suricata/CRS rules.

Rejected pattern present

[[ reason ]]

What does this mean?

Format & documentation suggestions

Not a security issue — this rule is valid and was accepted as-is. These are optional fields/conventions its own format recommends, mainly affecting its quality score and how well it documents itself for other reviewers.

[[ reason ]]

What do these messages mean?

[[ currentRule.title && currentRule.title.length > 60 ? currentRule.title.slice(0, 60) + '…' : currentRule.title ]]

[[ currentRule.title ]]

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